<mat-drawer-container class="example-container" [hasBackdrop]="true">
  <mat-drawer #drawer [mode]="'push'">
    <nav class="nav-bar">
      <button mat-menu-item routerLinkActive="active-link" routerLink="/">Home</button>
      <button mat-menu-item routerLink="/help">Help</button>
    </nav>
  </mat-drawer>

  <mat-drawer-content>
    <router-outlet></router-outlet>
  </mat-drawer-content>
</mat-drawer-container>
